Oryza Sativa (Rice) Bran Extract: Functions, Benefits, and Applications in Cosmetics
A comprehensive guide to Oryza Sativa (Rice) Bran Extract: Its role, benefits, safety, and sustainable use in skin and hair care formulations.
What is Oryza Sativa (Rice) Bran Extract?
Oryza Sativa (Rice) Bran Extract is a natural ingredient derived from the outer layer of rice grains (Oryza sativa), known as the bran or hull. This byproduct of rice milling is rich in essential nutrients, including fatty acids, antioxidants, vitamins, and minerals, making it a valuable material for cosmetic and personal care formulations.
INCI Name and Regulatory Information
- INCI (International Nomenclature of Cosmetic Ingredients) Name: Oryza Sativa (Rice) Bran Extract
- Chem/IUPAC Name: Oryza Sativa Extract
- CAS Number: 68553-81-1 (typically for the extract) or 90106-37-9 (rice extract in general)
- EINECS/ELINCS No: 618-454-9
- COSING REF No: 35754
- Animal Testing: Not animal tested in compliant, modern cosmetic formulas
- Vegan: Does not contain animal-derived components
How is Oryza Sativa (Rice) Bran Extract Obtained?
The extract is produced by macerating rice bran and extracting active constituents with water or, sometimes, with a water-glycerin solution. Modern manufacturers may use proprietary enzymatic or biotransformation processes to maximize the yield and accessibility of key nutrients, making the final extract more effective and eco-friendly.
The extract is typically:
- A pale yellow to brown liquid with a faint, nutty aroma
- Water-soluble, allowing easy incorporation into various cosmetic bases
- Preserved with safe agents like phenoxyethanol for product stability
Composition: Key Nutrients and Active Compounds
- Essential Fatty Acids: Omega-6 and omega-9 fatty acids help strengthen the skin’s barrier and lock in moisture.
- Antioxidants: High levels of ferulic acid, gamma-oryzanol, tocopherols (Vitamin E), and phytosterols protect against oxidative stress and premature aging.
- Vitamins: Especially Vitamin E and Vitamin B complex, contributing to regeneration and repair.
- Minerals: Trace elements supporting overall skin health.
- Amino Acids: Contributing to hydration, skin conditioning, and soothing effects.
- Lecithin: Improving texture and delivery of active compounds.
Functions and Benefits in Cosmetics
Oryza Sativa (Rice) Bran Extract is prized in the beauty industry for its broad range of beneficial properties, which include:
- Skin Conditioning: Deeply hydrates, softens, and smooths the skin, suitable even for sensitive types [10].
- Protection: Antioxidant protection from environmental stressors, including UV radiation and pollution.
- Anti-Aging Action: Reduces the appearance of fine lines, wrinkles, and dark spots by neutralizing free radicals.
- Skin Brightening: Promotes a more even skin tone, addressing hyperpigmentation and signs of dullness.
- Soothing: Calms inflammation and irritation, such as after exposure to sunburn or harsh chemicals.
- Firming and Purifying: Enhances skin firmness and clarity, leaving a purified, healthier-looking complexion.
- Gentle Renewal: Vitamins and phytosterols support skin’s regenerative processes, bringing radiance and vitality.
Applications: Where is Oryza Sativa (Rice) Bran Extract Used?
This extract is adaptable in a wide range of skin care and hair care product categories, most commonly found in:
- Moisturizing creams and lotions
- Soothing serums for sensitive or inflamed skin
- Face masks for skin renewal
- Toners and cleansing products
- Sun protection and after-sun products
- Hair masks and shampoos for nourishment, strengthening, and shine
- Bathing powders and body washes
Popular Products Featuring Rice Bran Extract
- Fermented Rice Water: Known for enhanced bioactivity and skin brightening.
- KeraRice™: Used in hair care for strengthening and conditioning benefits.
- Rice/Almond Oil Herbamilk® Eco: Blends rice bran extract for moisturizing and soothing formulations.
Scientific Evidence Supporting Benefits
Modern cosmetic science validates many of the traditional uses of rice bran extract. Key findings include:
- Reduces Irritation: In vivo studies show that rice bran extract, when added to Sodium Lauryl Sulfate (SLS) solutions, significantly reduces skin redness and irritation compared to SLS alone.
- Superior Antioxidant Action: Experimental data indicate rice bran extract can outperform other polyphenol-rich blends in inhibiting oxidation processes and protecting cellular components from oxidative damage.
- Hydration and Barrier Repair: Amino acids and fatty acids deliver substantial improvements in skin hydration and barrier resilience, especially in sensitive or dry skin.
Sustainability and Sourcing
Oryza Sativa (Rice) Bran Extract stands out as a sustainable cosmetic raw material due to its origin as a byproduct of rice milling. This supports a zero-waste approach and provides economic and environmental advantages:
- Renewable Source: Rice is globally cultivated and bran is consistently available as a byproduct.
- Eco-Friendly Extraction: Modern extraction techniques maximize nutrient yield with minimal energy and plant material, reducing environmental impact.
- No Animal Components: Can be formulated into vegan and cruelty-free cosmetics.
Physical Properties and Specifications
| Appearance | Pale yellow to brown liquid, slight characteristic odor |
|---|---|
| Solubility | Water-soluble; easily dispersible in water and glycerin |
| pH Value | Typically 4.0–6.5 |
| Preservation | Usually phenoxyethanol |
| Recommended Use Level | 5–10% in most cosmetic formulas |
| Country of Origin | Varies (USA and other rice-producing countries) |
Safety Assessment
Rice bran extract is generally well-tolerated and considered safe for use in cosmetics. Multiple safety evaluations and patch tests confirm its low potential for irritation, even for sensitive skin types. Other key safety considerations:
- Low risk of allergic reaction when properly formulated and preserved
- Recommended for external use only; not intended for ingestion
- Opaque or air-tight packaging may enhance stability by protecting antioxidants from light and air
Environmental and Ethical Considerations
- Rice bran is a sustainable byproduct—its use in cosmetics promotes full use of agricultural output
- Eco-friendly extraction and vegan, cruelty-free formulations support ethical consumer demands
Comparison: Rice Bran Extract vs. Other Botanical Extracts
| Extract | Main Bioactives | Primary Benefits | Suitability |
|---|---|---|---|
| Rice Bran Extract | Ferulic acid, gamma-oryzanol, Vitamin E, fatty acids | Antioxidant, soothing, moisturizing, brightening | All skin types, sensitive skin, hair care |
| Green Tea Extract | Catechins (EGCG), polyphenols | Antioxidant, anti-inflammatory, anti-acne | Oily/acne-prone skin |
| Chamomile Extract | Bisabolol, flavonoids | Soothing, anti-inflammatory | Very sensitive skin, redness-prone skin |
| Licorice Root Extract | Glabridin, liquirtin | Skin lightening, anti-inflammatory | Hyperpigmented, sensitive skin |
How to Use Oryza Sativa (Rice) Bran Extract in Your Skincare Routine
- Look for it as a main or supporting active in moisturizing serums, creams, masks, and lotions.
- Ideal for daily use; adds hydration, luminosity, and protection without heaviness or greasiness.
- Works well in combination with other antioxidants (such as Vitamin C and E) for enhanced anti-aging benefits.
- Beneficial as a soothing agent after sun exposure, shaving, or exfoliation.
- In hair care, helps restore shine, strength, and silkiness, especially for damaged or color-treated hair.
Frequently Asked Questions (FAQs)
Q: Is rice bran extract suitable for sensitive skin?
A: Yes, rice bran extract is naturally soothing, non-irritating, and well-tolerated by most skin types, including sensitive or reactive skin.
Q: How does rice bran extract differ from rice water in cosmetics?
A: Rice bran extract is concentrated from the nutrient-rich bran and generally contains higher levels of actives like gamma-oryzanol and Vitamin E, whereas rice water is the starchy water left after rinsing or boiling rice, containing mainly carbohydrates and some proteins.
Q: Can it be used in hair care products?
A: Absolutely. Rice bran extract strengthens hair, enhances shine, reduces breakage, and nourishes the scalp—making it a popular addition to shampoos, conditioners, and masks.
Q: Is Oryza Sativa (Rice) Bran Extract comedogenic?
A: No, it is lightweight, does not clog pores, and can help calm acne-prone or combination skin.
Q: Is rice bran extract environmentally sustainable?
A: Yes, it utilizes a byproduct of rice milling, making it a renewable, low-waste ingredient aligned with sustainable beauty practices.
Key Takeaways
- Oryza Sativa (Rice) Bran Extract delivers significant hydrating, antioxidant, soothing, and anti-aging benefits for skin and hair.
- Scientifically backed and naturally derived, it is suitable for all skin types, particularly for dry, sensitive, or mature skin.
- Sustainably sourced and vegan-friendly, it aligns with modern ethical and green beauty trends.
- Look for it high on ingredient lists or in specialized formulas for best results.
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